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Language: GSM phone
Description Mr. X wants to travel from a point Your task is to find the length of the shortest way from Input The first line contains four floating point numbers X Output The output has to contain a single floating point number. Sample Input 0 0 8 0 2 0 4 5 8 4 5 Sample Output 8.24621 Source Northeastern Europe 2003, Western Subregion |

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